Fluid-components-international RF83 Manual Troubleshooting User Manual download pdf

Doc. No. 003147 Rev. B 5 - 1

Model RF83 Flow Switch

CHAPTER 5 - TROUBLESHOOTING FLUID COMPONENTS INTL

5. Troubleshooting

Warning:

Only qualified personnel should attempt to test this instrument. The operator assumes all

responsibilities for safe practices while troubleshooting.

Caution:

The control circuit contains electrostatic discharge (ESD) sensitive devices. Use standard ESD

precautions when handling the control circuit. See Chapter 2, Installation for ESD details.

Tools Needed

Digital Multimeter (DMM)

Quick Check

Check the jumper positions of J12, J13, J16 and J17. Jumper J12 and J17 energize the relays at flow or wet.

Jumpers J13 and J16 energize the relays at no flow.

Check that the control circuit is firmly seated into it's socket.

Check if power is present and customer fuses are good, if they are used.

Follow the trouble shooting flow chart in Figure 5-1 near the end of this chapter.

Non-maintenance Observations

At this point, observe the system setup to verify operation. No disassembly or testing is required at this time.

Check Serial Numbers

Verify that the serial number of the flow element and the control circuit are the same when the instrument is used

with the remote enclosure option. The flow element and the control circuit are a matched set and cannot be operated

independently of each other.

Check Input Power

Verify that the correct power source is turned on and connected.

Check the Instrument Installation

Review the information on instrument installation in Chapter 2 to verify correct mechanical and electrical

installation.

At the time of order the flow element placement should have been determined. However, if not, the flow element

should be mounted at least 20 diameters downstream and 20 diameters upstream from any bends or interference in

the process pipe or duct.

Check for Moisture

Check for moisture on the control circuit. Moisture on the control circuit may cause intermittent operation.

Check for moisture on the flow element. If a component of the process media is near its saturation temperature it

may condense on the flow element. Place the flow element where the process media is well above the saturation

temperature of any of the process gases.

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Summary of Contents

Page 1 - 5. Troubleshooting

Doc. No. 003147 Rev. B 5 - 1 Model RF83 Flow SwitchCHAPTER 5 - TROUBLESHOOTING FLUID COMPONENTS INTL5. TroubleshootingWarning:Only qualified p

Page 2 - Sen B (7) Com Sen (8) 4000

FLUID COMPONENTS INTL CHAPTER 5 - TROUBLESHOOTINGModel RF83 Flow Switch 5 - 2 Doc. No. 003147 Rev. BCheck Application Design RequirementsApplication

Page 3 - °F (21 °C)

Doc. No. 003147 Rev. B 5 - 3 Model RF83 Flow SwitchCHAPTER 5 - TROUBLESHOOTING FLUID COMPONENTS INTLTable 5-2. Remote Flow Element Resistance

Page 4

FLUID COMPONENTS INTL CHAPTER 5 - TROUBLESHOOTINGModel RF83 Flow Switch 5 - 4 Doc. No. 003147 Rev. BFigure 5-1. Troubleshooting Flow ChartProblem?Ve

Page 5 - Customer Service

Doc. No. 003147 Rev. B 5 - 5 Model RF83 Flow SwitchCHAPTER 5 - TROUBLESHOOTING FLUID COMPONENTS INTLSparesFCI recommends that one control circ

Page 6

FLUID COMPONENTS INTL CHAPTER 5 - TROUBLESHOOTINGModel RF83 Flow Switch 5 - 6 Doc. No. 003147 Rev. B

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Fluid-components-international RF83 Manual Troubleshooting User Manual

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